@article{QUE_1992_1992_1_a9,
     author = {Nikulin, Mikhail S.},
     title = {Un modelo matem\'atico para la loter{\'\i}a.},
     journal = {Q\"uestii\'o},
     pages = {177-187},
     year = {1992},
     volume = {16},
     number = {1-2-3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/QUE_1992_1992_1_a9/}
}